Pilot-house light.



J. H. BUXBAUM.

PILOT HOUSE LIGHT.

APPLICATION FILED MAR.23, 1911.

Patented Jan.30, 1912.

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JOHN H. BUXBAUM, OF SEATTLE, WASHINGTON.

' PILOT-HOUSE LIGHT.

iniaaos.

Specification of Letters Patent. Patented Jan. 30, 1912.

. Application filed March 23,1911. Serial No. 616,406.

To all whom it may concern: Be it known that I, JOHN H. BUXBAUM, citizenof the United States, residing at- Seattle, in the county of King andState of Washington, have invented, certain new and useful Improvementsin Pilot-House Lights, of which the following is a specification.

This invention relates to devices for facilitating the navigating ofmarine vessels.

The object of the invention is the pro-- vision of a peculiarlyconstructed casing for an incandescent electric-light whereby thelatter, while primarily adapted for employment as a binnacle lamp, maylikewise be advantageously used for illuminating the pilot-house clockor for casting a beam of light across the log-book when an entry is tobe made.

The invention consists in a receptacle, or casing, for an electric-lampwhich is impervious'to light except at the extreme end wherefrom extendsa tubular prolongation to cause the light from the lamp to be directedin a substantially straight line.

The invention further consists in the novel construction and adaptationof devices, as will be hereinafter described and claimed.

In. theaccompanying drawings, Figure 1 is a vertical cross sectionalview of an embodiment of my invention; and Fig. 2 is'a perspective viewof a ships-binnacle with the invention applied thereto.

Referring to the drawings, the numeral 5 designates an incandescent lamparranged to be screwed in a receptacle 1 provided therefor in akeysocket 6' of suitable construction, which is attached to an extensioncord 7 for supplying the lighting current to the lamp.

In carrying out my invention, I provide a casing formed of two separablemembers 8 and fi, of which the former is formed, desirably, ofsubstantially semi-globular shape and is secured to the outer casing 2of said socket by soldering, or other suitable manner. Said casing 2 ofthe socket is provided with a plurality of apertures 3 which communicatewith the interior of said member 8 through an annular space 4 betweenthe receptacle 1 and said casing for the purpose of creating a coolingcurrent of air therethrough. The other member 9 is of a concidalconfiguration and has a marginal. flange 10 adapted to fit snugly with alike flange 11 provided about the mouth of the other member. Integralwith the member 9 and protruding from its smaller end is tube 12 whichis of relatively small diameter and arranged axially with respect to.the conoidal. portion of the member. At the juncture of the tube withthe conoidal portion there is provided an annular collar 13;

In Fig. 2, the invention, as aforedescribed, is illustrated as havingthe tube 12 inserted through an aperture in the top of a binnacle 14 andpositioned directly above the indexmark 15, commonly known aslubbersmark, upon the non-rotatable frame 16 of the compass and wherebythe light from the lamp is cast to illuminate a comparatively small areaof the compass card and of said frame surrounding said mark andpreventing any divergence of the rays of light over the entire face ofthe compass-card as inherent with other schemes of lighting bin-- naclesas has hitherto been the case as far as my knowledge 4 extends.

Upon withdrawing the tube from the binnacle itmay be pointed at the dialof the pilot-house clock I for casting a beam of light thereupon toascertain the time, and also by holding the device in one hand of theoperator and properly directing the light across the page of a logbookthe line upon which the entry is to be made is alone illuminated. Inpractice, a lamp of not to exceed two candlepower is usually selectedand thelight is generally subdued to render the same less trying to theeyes of a steers man by employing a lamp with a colored or semi opaqueglobe.

Among the advantages afforded by this invention is the application of alight in a beam of small diameter and which, in the case of its use witha compass, illuminates a small surface of the compass card and framewhich are in contiguity with the lubbers-mark, consequently the lightthus pro jected serves to attract the eyes of the steersman to only suchpart of the compass as affects the course taken by the vessel; while theremainder of the interior of the binnacle is correspondingly obscured, acondition tending to not only facilitate the steering, but also proveless trying to the eyes than would otherwise prevail.

I Having described. my invention, what I claim, is

The combination with a binnacle, a compass in the binnacle, and a lamp,of a casing for said lamp comprised of two members detachably connectedtogether, one of said members being provided centrally of its lower endwith a relatively long light-conveying tube of relatively small diameteradapted to be removably inserted through a hole in the binnacle-top fordirecting the light of the lamp upon a relatively small area of thecompass and contiguous of the lubbers-mark thereon. 7

JOHN H. BUXBAUM. Witnesses:

H. BARNES, E. PETERSON.

